JPH0315006Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an opening/closing device for a partition curtain installed in a greenhouse for heat retention and light shielding, and particularly to an opening/closing device for a curtain on the ceiling of a greenhouse.

<Prior art> Conventionally, when opening and closing curtains on the ceiling of a greenhouse, a large number of support wires are stretched in the opening and closing direction of the curtain, a drive wire is stretched, and the ends of the drive wires are wound up. The curtain is wound and fixed on a drum, the moving edge of the curtain is fixed to the drive wire, and the drive wire is moved by rotating the winding drum by a prime mover to open and close the curtain.

In curtains that open and close curtains using a drive wire, the drive wire stretches due to repeated opening and closing operations, so the number of rotations of the winding drum that winds the drive wire is measured to control the curtain stop position. In this case, the stop position of the curtain is displaced due to the elongation of the drive wire, making it impossible to completely open or close the curtain, resulting in a shadow when the curtain is opened and a gap when it is closed.

In addition, when opening and closing highly heat-retaining curtains made of thick material, the load placed on the drive rope is large, so opening and closing cannot be done using a drive wire, and the curtain must be wound up using a winding shaft. I was unable to open or close the curtains. However, the curtain opening/closing device using the winding method has a drawback that the structure is complicated and the cost is high.

Furthermore, when opening and closing are performed using a drive rope, the drive rope may be damaged due to overlapping winding.

<Purpose> The present invention solves the above-mentioned conventional drawbacks and provides a device that can completely open and close curtains without damaging them, and that can also open and close curtains made of thick material. The purpose is to provide.

<Structure> The present invention is a curtain opening/closing device for opening and closing the ceiling of a greenhouse, which includes a rotating member disposed parallel to the side wall surface of the greenhouse, a pinion fixed to the rotating member, and a pinion attached to the pinion. A driving member having engaged racks and moving in a direction parallel to the end surface, a guide member fixed to the driving member and disposed parallel to the side wall surface, and a moving edge stopped at the guide member. a receiving member fixed to a pillar so as to be parallel to the side wall surface and to which the other end edge of the curtain is fixed, and a large number of support wires stretched parallel to the end surface; A greenhouse curtain opening/closing device comprising: a prime mover that drives the rotating member;

<Example> Next, an example of the present invention will be described with reference to the drawings.

An embodiment of the present invention is shown in FIGS. 1-4.

Reference numeral 1 indicates an appropriate number of pillars arranged in the multi-building greenhouse 2, and reference numeral 3 indicates a curtain that opens and closes the ceiling surface of the greenhouse 2.

Reference numeral 4 denotes a rotating member disposed parallel to the side wall surface, and made of a hard material with a square cross section.

Reference numeral 5 denotes a motion converter, which has a bearing for a rotating shaft 41 fixed to the rotating member 4. 42 is a pinion fixed to the rotating member 4.

Reference numeral 6 denotes a driving member, which has a rack 61 meshed with the pinion 42, and is configured to perform linear movement in a direction parallel to the end surface.

Reference numeral 51 denotes a roller that rotates in pressure contact with the driving member 6 having a rack 61 meshed with the pinion 42.

Reference numeral 7 denotes a guide member, which is fixed at key points of the drive member 6 and supported in parallel to the side wall surface.

The moving edge of the curtain 3 is fixed to the guide member 7, and the other edge is fixed to the receiving member 8.

The receiving member 8 is fixed to the pillar 1 so as to be parallel to the side wall surface of the greenhouse.

9 is a side end wire stretched on the upper end of the side wall surface; 10 is a support wire supported by the side end wire 9; Curtain 3 is supported.

The guide member 7 has a generally shaped cross section as shown in FIG. 3, and the drive member 6 is connected and fixed to its bottom 7a via a connecting member 71 with a connecting tool 72 and a bolt 73.

The drive member 6 is disposed below the support wire 10 and moves, and includes a guide member 7 connected and fixed to the drive member 6 via a connector 71 and a curtain 3 whose moving edge is fixed to the guide member 7. is support wire 1
The height of the connecting member 71 is set so that the connecting member 71 is disposed and moves above 0.

Reference numeral 11 denotes a prime mover, which is disposed on the column 1 and drives the rotating member 4.

12 is a bearing of the rotating member 4.

Further, reference numeral 13 denotes a support for supporting the rotating member 6, which is disposed on the column 1.

The receiving member 8 has a substantially rectangular cross section, and when the guide member 7 abuts the receiving member 8 when the curtain 3 is closed, the guide member 7 and the receiving member 8 have a substantially rectangular cross section, and the curtain is formed inside the substantially rectangular cross section. 3 can be stored. The shape of the receiving member 8 and the guide member 7 is such that the shape of the receiving member 8 and the guide member 7 is such that the curtain 3 is
Any other shape may be used as long as it can accommodate the .

Note that the rotating member 4 may have a shape other than the rectangular cross section shown.

Motion converting section 5 and roller 5 of the motion converting section 5
1 is omitted, and the pinion 42 and rack 61 are not supported or covered.
It is also possible to interlock them naked.

The driving member 6, the guide member 7, and the receiving member 8 are made of a hard material such as a pipe material or a bar material.

Preferably, the drive member 6 uses a corner member to prevent rotation.

Further, the rack 61 is provided on the drive member 6 with a length equal to or longer than the moving distance of the moving edge of the curtain 3.

In such a curtain opening/closing device, when the rotating member 4 is rotated in the direction of arrow A by the prime mover 11, the pinion 42 fixed to the rotating member 4 rotates in the same direction, and the rack meshed with the pinion 42 rotates in the same direction. 61, the drive member 6 moves in the direction of arrow a, the guide member 7 fixed to the drive member 6 moves in the same direction, and the curtain 3 whose moving edge is fixed to the guide member 7 is closed. . In this case, the prime mover 11
By measuring and controlling the number of rotations, the moving distance of the drive member 6 can be controlled, so the curtain 3 can be completely closed and no gap will be created.

When opening the curtain 3, if the rotary member 4 is rotated in the direction of arrow B by the motor 11, the drive member 4 and the guide member 7 move in the direction of arrow b, and the curtain 3 is opened. In this case as well, the prime mover 1
By measuring and controlling the number of rotations of the curtain 3, the curtain 3 can be completely opened and no shadow will be cast inside the greenhouse.

The rotation of the rotating member 4 is transmitted to the driving member 6 by the pinion 42 and the rack 61, and since the driving member 6 and the guide member 7 are made of hard material, the curtain 3 is moved at the rotation speed of the rotating member 4. The opening/closing position of the curtain will not become inaccurate due to the extension of the rope, as would be the case when opening/closing the curtain using a drive rope.

When the curtain 3 is closed, the curtain 3 is housed inside the generally rectangular cross section formed by the guide member 7 having a roughly shaped cross section and the receiving member 8 having a roughly shaped cross section coming into contact with each other. It is possible to prevent the curtain 3 from deteriorating over time.

Note that the drive member 6 is mounted on a rack 6 as shown in FIG.
It is also possible to have an approximately--shaped configuration in which the portion having the number 1 is placed below the other portions. With such a shape, even if the guide member 7 is directly connected to the drive member 6 without using the connecting member 71, the guide member 7 is supported above the support wire 10 as shown in FIG. .

<Effects> Since the present invention has the above configuration, it has the following effects.

The rotation of the rotating member is converted into linear motion of the driving member by pinions and racks, and the moving edge of the curtain is fixed to the guide member fixed to the driving member to open and close the curtain, so the curtain can be opened and closed by the driving rope. There is no disadvantage that the drive rope stretches like in the case of curtains, and the opening and closing positions of the curtain can be precisely controlled, so the curtain can be opened and closed completely. There is no shadow from the curtain of time.

Since the curtain is opened and closed by the drive member and the guide member, the driving force is stronger than that by a drive rope, so it is also possible to open and close curtains made of thick material with high heat retention.

Since the curtain is opened and closed using a hard material, it will not be damaged as would be the case with a driving rope.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted perspective view of an embodiment of the present invention;
Fig. 2a is a perspective view of the motion converting section, Fig. 2b is a sectional view thereof, Fig. 3a is an exploded perspective view of the connecting part between the drive member and the guide member, Fig. 3b is a side view thereof, and Fig. 4 5 is a side view of another embodiment of the driving member, and FIG. 6 is a schematic diagram of the invention when the driving member shown in FIG. 5 is used. 3...Curtain, 4...Rotating member, 42...Pinion, 5...Motion converter, 6...Driving member, 6
1...Rack, 7...Guiding member, 8...Receiving member,
10... Support wire, 11... Prime mover.

Claims (1)

[Claims for Utility Model Registration] 1. A curtain opening/closing device for opening and closing the ceiling of a greenhouse, comprising: a rotating member disposed parallel to the side wall of the greenhouse; a pinion fixed to the rotating member; and the pinion. It has a rack that is engaged with the
a driving member that moves in a direction parallel to the gable surface; a guide member fixed to the driving member and disposed parallel to the side wall surface; a curtain having a moving edge fixed to the guide member; and the above-mentioned side. A receiving member fixed to a pillar parallel to the wall surface and having the other end of the curtain fixed thereto, a large number of supporting wires stretched parallel to the end surface, and a prime mover for driving the rotating member. A greenhouse curtain opening/closing device consisting of . 2. The device according to claim 1, wherein the drive member has a portion having a rack located below the other portion. 3. The first registered claim characterized in that when the curtain is closed when the guide member contacts the receiving member, the guide member and the receiving member have a substantially rectangular cross section, and the curtain is housed inside the substantially rectangular cross section.
Apparatus described in section. 4. The device according to claim 1, wherein the rotation axis is an angular rotation axis.